The generic placement of this species is unsettled. Hemsley originally
placed it, with uncertainty, in Sarcosperma. This has been
followed by W. Y. Chun and How (Acta Phytotax. Sin. 7: 74. 1958).
However, this species differs distinctly from Sarcosperma
in both vegetative and floral characters. Lam and Kerpel (Blumea
3: 285. 1939.) and P. Royen (Blumea 8: 359. 1957.) transferred
it to Planchonella. This transfer was followed by C. Y.
Wu and H. W. Li [Yunnan Redai Yaredai Zhiwu Quxi Yanjiu Baogao
(Rep. Stud. Pl. Trop. Subtrop. Yunnan)] 1: 26. 1965.) who drew
attention to the seeds with copious endosperm and leafy cotyledons.
However, other features such as the racemose, sometimes paniculate
inflorescences, and seeds with a round, basal scar, suggest exclusion
from Planchonella. Based on the alternate leaves, 1-seeded
berry, and seed characteristics, it is here included within Sinosideroxylon.